My daughter is 2 years and 7 months old. Sometimes at night, she starts crying badly during sleep and wakes up, but does not stop crying. She calls me mama mama and when I hold her she never stops crying as if she had severe pain in her body. Then she wants to go to her father, but doesn't stop crying.

We offer many things, but she does not want to take anything at that time. We ask about pain, but she doesn't reply, just cries badly. We ask her if she was scared? But she doesn't respond. After 15 to 30 mins or more she stops by herself and sleeps. It happens almost every month. I am worried about her.

Is this normal or not?